Rockstop Rim Protector is a durable and highly shock-absorbing rubberised polymer specifically designed for your MTB rim. Its primary function is to safeguard your rim from dings, while also offering protection to your tyre against most impact punctures and burping.The unique geometry of the cross bridges ensures that the edges of the Rockstop are firmly pressed against the tyre sidewall. This strategic positioning allows the Rockstop to act as the shock-absorbing layer between the tyre and rim, effectively preventing pinch punctures and rim damage in the event of a rock collision.The Rockstop Rim Protector is available in two variants: one for 27.5" and 29" wheels, designed to fit 23-34mm rims; and another for 700c wheels, optimized for gravel and suitable for 19mm rims and above.Features and Benefits:- Made from a high shock-absorbing rubberised polymer- Weighs approximately 250g per wheel- Easy to fit without the need for glue or extra valves- Comes ready assembled- Manufactured in the UKBox Contents:- 1 x Rockstop Rim Protector- Assembly guide- Rockstop merchandise- Some Cumbrian air!Enhance your ride with the Rockstop Rim Protector. Protect your rims and tyres from damage, and enjoy a smoother and more worry-free cycling experience.